We begin with more bullets flying at yet another school. This time at a community college near houston. Overnight, phew details about the suspected gunman. Ryan owens has the latest. Reporter: They are the frightening images that have become far too common. Police helping students off campus. A twitter picture of people cowering in classrooms. This time, the setting is lone star college, a community college north of houston. Tuesday afternoon, it wasn't a lone deranged gunman targeting students but two men having an argument near the campus library. Their fight ended in gunfire. I heard bang, bang, bang, bang. Someone started screaming. Reporter: A college maintenance worker was caught in the cross-fire, shot this the leg. A female student went to the hospital after reportedly having a heart attack. The two suspects, one a student, are in custody. We have had three training exercises for faculty and staff on what to do in an event like this.

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